/*
 * data structures representing a schematic in memory
 */

#define	OBJTYPE_SENTINEL	0x00
#define	OBJTYPE_COMPINST	0x01
#define	OBJTYPE_GRAPHSYM	0x02
#define	OBJTYPE_NET		0x03
#define	OBJTYPE_GRAPHNET	0x04
#define	OBJTYPE_NETLINE		0x05
#define	OBJTYPE_BUSSEG		0x06
#define	OBJTYPE_GRAPHBLOCK	0x07
#define	OBJTYPE_COMMENT		0x08
#define	OBJTYPE_MAX		0x08

struct schem {
	/* the first 3 fields must match struct schemobj to serve as sentinel */
	struct	schemobj *obj_next;
	struct	schemobj *obj_prev;
	int	obj_type;
	/* we're free from here onward */
	char	*orig_filename;
	int	is_graph;
	int	graph_xsize;
	int	graph_ysize;
	int	has_graphblocks;
	struct	schemobj **compinst_hash;
	struct	graphsym_pininst **pininst_hash;
};

struct schemobj {
	struct	schemobj *obj_next;
	struct	schemobj *obj_prev;
	int	obj_type;
	int	obj_lineno;
	struct	decoration *obj_decorations;
	/* the rest differs by type */
	union {
		struct {	/* Component and GraphSym */
			char	*instname;
			struct	component *mclcomp;
			int	is_graph;
			char	*graph_symname;
			struct	graphsym *graphsym;
			int	x;
			int	y;
			int	rotate;
			int	mirror;
			struct	schemobj *next_in_hash;
			struct	graphsym_pininst *pin_instances;
		} comp;
		struct {	/* Net and GraphNet */
			char	*netname;
			struct	netpoint *points;
			struct	schemobj *grouphead;
			int	has_forcenet_syms;
		} net;
		struct {	/* NetLine and BusSeg */
			int	x1;
			int	y1;
			int	x2;
			int	y2;
		} netline;
		struct graphblock	*graphblock_body;
		char			*comment_text;
	} bytype;
};

/* for Component and GraphSym */
#define	compobj_instname	bytype.comp.instname
#define	compobj_mclcomp		bytype.comp.mclcomp
#define	compobj_isgraph		bytype.comp.is_graph
#define	compobj_graph_symname	bytype.comp.graph_symname
#define	compobj_graphsym	bytype.comp.graphsym
#define	compobj_x		bytype.comp.x
#define	compobj_y		bytype.comp.y
#define	compobj_rotate		bytype.comp.rotate
#define	compobj_mirror		bytype.comp.mirror
#define	compobj_nextinhash	bytype.comp.next_in_hash
#define	compobj_pins		bytype.comp.pin_instances

/* for Net and GraphNet */
#define	netobj_netname		bytype.net.netname
#define	netobj_points		bytype.net.points
#define	netobj_grouphead	bytype.net.grouphead
#define	netobj_forcenets	bytype.net.has_forcenet_syms

/* for NetLine and BusSeg */
#define	lineobj_x1		bytype.netline.x1
#define	lineobj_y1		bytype.netline.y1
#define	lineobj_x2		bytype.netline.x2
#define	lineobj_y2		bytype.netline.y2

/* for GraphBlocks and Comments */
#define	graphblockobj_body	bytype.graphblock_body
#define	commentobj_text		bytype.comment_text

struct netpoint {
	struct	netpoint *netpt_next;
	int	netpt_type;
	char	*netpt_pin_nameref;
	int	netpt_x;
	int	netpt_y;
	int	netpt_coord_valid;
	struct	schemobj *netpt_tjoin_to;
};

#define	NETPT_TYPE_POINT	0
#define	NETPT_TYPE_PIN		1
#define	NETPT_TYPE_TJOIN	2
#define	NETPT_TYPE_PSEUDO	3

struct decoration {
	struct	decoration *decor_next;
	int	decor_type;
	int	decor_lineno;
	/* the rest differs by type */
	union {
		struct {
			char	*name;
			char	*value;
		} attr;
		struct {
			char	*attr;
			int	x;
			int	y;
			int	ptsize;
			int	rotate;
			int	alignment;
		} display;
		struct {
			char	*pin;
			char	*netname;
		} pintonet;
		struct {
			char	*pin;
			char	*symname;
			struct	graphsym *graphsym;
			int	mirror;
		} symonpin;
		struct graphblock	*graphblock_body;
		char			*comment_text;
	} bytype;
};

#define	DECOR_TYPE_ATTR			0x01
#define	DECOR_TYPE_DISPLAYATTR		0x02
#define	DECOR_TYPE_DISPLAYNETNAME	0x03
#define	DECOR_TYPE_GRAPHBLOCK		0x04
#define	DECOR_TYPE_COMMENT		0x05
#define	DECOR_TYPE_PINTONET		0x06
#define	DECOR_TYPE_SYMONPIN		0x07
#define	DECOR_TYPE_NOCONNECT		0x08

#define	decorattr_name		bytype.attr.name
#define	decorattr_value		bytype.attr.value

#define	decordisp_attr		bytype.display.attr
#define	decordisp_x		bytype.display.x
#define	decordisp_y		bytype.display.y
#define	decordisp_ptsize	bytype.display.ptsize
#define	decordisp_rotate	bytype.display.rotate
#define	decordisp_alignment	bytype.display.alignment

#define	decorpincon_pin		bytype.pintonet.pin
#define	decorpincon_netname	bytype.pintonet.netname

#define	decorpinsym_pin		bytype.symonpin.pin
#define	decorpinsym_symname	bytype.symonpin.symname
#define	decorpinsym_gs		bytype.symonpin.graphsym
#define	decorpinsym_mirror	bytype.symonpin.mirror

#define	decorgraph_body		bytype.graphblock_body
#define	decorcomment_text	bytype.comment_text

struct graphblock {
	int	type;
	off_t	offset;
	size_t	length;
	int	lineno;
};

#define	GRAPHBLOCK_TYPE_PS	0
#define	GRAPHBLOCK_TYPE_GSCHEM	1

/*
 * This doesn't really belong here, but I couldn't find a better place
 * for this structure definition: I want to make this table available
 * to the writer as well.
 */

struct drawing_size_kwtab {
	char	*keyword;
	int	xdim;
	int	ydim;
};